Cherry, one of my adult Nubians, has been known to grab a kids bottle, and hold it in her mouth, and drink the contents. Some would bottle feed forever if allowed. To be honest, once mine are eating hard feed, and I have seen then drink water, they go on one bottle a day, and then its just stopped. When you have a lot bottle feeding, the sooner they are weaned, the better. By8 weeks mine are not bothered for their milk.